<template>
    <!-- 底部 -->
    <div class="my-footer">
      <!-- 全选 -->
      <div class="custom-control custom-checkbox">


        <input v-model="isAll" type="checkbox" class="custom-control-input" id="footerCheck">
        <label class="custom-control-label" for="footerCheck">全选</label>
      </div>
      <!-- 合计 -->
      <div>
        <span>合计:</span>
        <span class="price">¥ {{allPrice}}</span>
      </div>
      <!-- 按钮 -->
      <button type="button" class="footer-btn btn btn-primary">结算 ( {{allCount}} )</button>
>>>>>>> remotes/origin/demo
    </div>
  </template>
  
  <script>
  export default {

    computed:{
        isAll:{
            set(val){
                this.$emit('isAll',val)
            },
            get(){
                return this.obj.every(obj => obj.goods_state===true)
            }
        },
        allCount(){
            return this.obj.reduce((sum,obj)=>{
                if (obj.goods_state===true) {
                    sum += obj.goods_count
                }
                return sum
            },0)
        },
        allPrice(){
            return this.obj.reduce((sum,obj)=>{
                if (obj.goods_state===true) {
                    sum += (obj.goods_price*obj.goods_count)
                }
                return sum
            },0)
        }
    },
    props:['obj']
  }
  </script>
  
  <style lang="less" scoped>
  .my-footer {
    position: fixed;
    z-index: 2;
    bottom: 0;
    width: 100%;
    height: 50px;
    border-top: 1px solid #ccc;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 10px;
    background: #fff;
  
    .price {
      color: red;
      font-weight: bold;
      font-size: 15px;
    }
    .footer-btn {
      min-width: 80px;
      height: 30px;
      line-height: 30px;
      border-radius: 25px;
      padding: 0;
    }
  }
  </style>